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Re: [openpgp] "SHA-1 is a Shambles" and forging PGP WoT signatures

2020-01-24 10:57:25

Damien Goutte-Gattat <dgouttegattat(_at_)incenp(_dot_)org> wrote:
    > What Marcus says the author *could* have done is to generate the two keys 
A
    > and B in such a way that they also have the same fingerprint. They have
    > not

I'm not convinced that there are enough under-determined bytes that can be
mutated in the content that goes into making the fingerprint.
AFAIK, it's just the key.

I guess, maybe if the key is big enough (rsa 8K, bigger), that the bytes
could be in the prime itself.  Are you saying that?  If so, I wonder what the
smallest key for which this is true is.

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